Chapter 9 What You Need To Do; Verify The Communication Driver Configurations - Allen-Bradley AB QUALITY ControlLogix 1756 Series User Manual

What You Need To Do
Verify the communication driver
configurations (page 9-1).
Test the hardware (page 9-2).
Configure the communication
modules in the left chassis
(page 9-3).
Configure the communication
modules in the right chassis
(page 9-8).
Test the application (page 9-14).
Initiate DH+ to DH+ Communication With an
Ethernet Backbone
In this application, you will establish communication between two
PLC-5/40C processors over two DH+ gateways using an Ethernet
backbone. Change your existing system to the following configuration:
PC Workstation
DH+ Network
(link 10)
LEFT CHASSIS
1756-DHRIO Module
(in slot 0)
DH+ Network
(link 20)
PLC-5/40C Processor
(DH+ node 10)
In this example, the PLC-5/40C processor in the left chassis at DH+ node
10 initiates a PLC-5 Typed Read message from the PLC-5/40C processor in
the right chassis at DH+ node 1, via an Ethernet link.

Verify the Communication Driver Configurations

Verify that the KTX driver and ethernet driver are configured as directed on
page 3-2.
(DH+ node 0)
Ethernet
Hub
(link 100)
DH+ node 3
(channel A)
DH+ node 4
(channel B)
1756-ENET Module
(in slot 0, Ethernet IP
address 130.130.130.2)
1756-ENET Module
(in slot 2, Ethernet IP
address 130.130.130.1)
MSG
Publication 1756-6.5.13 - September 1999
9
Chapter
RIGHT CHASSIS
DH+ Network
(link 30)
PLC-5/40C Processor
(DH+ node 1)